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M48T251YPM Datasheet(PDF) 20 Page - STMicroelectronics

No. de pieza M48T251YPM
Descripción Electrónicos  5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM
PDF  24 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M48T251YPM Datasheet(HTML) 20 Page - STMicroelectronics

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M48T251Y, M48T251V
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Figure 13. Power Down/Up Mode AC Waveforms
Table 12. Power Down/Up Trip Points DC Characteristics
Note: 1. Valid for Ambient Operating Temperature: TA = 0 to 70°C; VCC = 4.5 to 5.5V or 3.0 to 3.6V (except where noted).
2. At 25°C, VCC = 0V; the expected tDR is defined as cumulative time in the absence of VCC with the clock oscillator running.
Symbol
Parameter(1)
Min
Max
Unit
tREC
VPFD (max) to CE low
1.5
2.5
ms
tF
VPFD (max) to VPFD (min) VCC Fall Time
300
µs
tFB
VPFD (min) to VSO VCC Fall Time
10
µs
tR
VPFD (min) to VPFD (max) VCC Rise Time
0
µs
tPD
CE High to Power-Fail
0
µs
tDR
(2)
Expected Data Retention Time
10
Years
tDR
tF
tREC
tR
tPD
tFB
VSO
VCC
CE
VPFD (max)
VPFD (min)
AI04236



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